Book reviews

Lutman, M. E. and Haggard, M. P. (Eds.). Hearing Science and Hearing Disorders. London: Academic Press. 1983. Pp. 338. ISBN 0-12-460440. £15.00.

Mehler, J., Walker, E. C. T. and Garrett, M. (Eds.). Perspectives on Mental Representation: Experimental and Theoretical Studies of Cognitive Processes and Capacities. Hillsdale, N. J.: Lawrence Erlbaum Associates. 1982. Pp. xiv+485. ISBN 0-89859-194-5. £27.50.

Schacter, D. L. The Stranger Behind the Engram. Theories of Memory and the Psychology of Science. Hillsdale, N.J.: Lawrence Erlbaum Associates. 1982. Pp. 294. ISBN 0-89859-245-3. £19.95.

Broughton, J. M. and Freeman-Moir, D. J. (Eds.). The Cognitive Developmental Psychology of James Mark Baldwin: Current Theory and Research in Genetic Epistemology. Norwood, N. J.: Ablex Publishing Corporation. 1982. Pp. 460. ISBN 0-89391-043-0. £36.50.

Flammer, A. and Kintsch, W. (Eds.). Discourse Processing (Advances in Psychology, Vol. 8). Amsterdam: North Holland. 1982. Pp. x + 614. ISBN 0-444-86515-2. £33.19.

Beaumont, J. Graham. (Ed.). Divided Visual Field Studies of Cerebral Organisation. London: Academic Press. 1982. Pp. xiii + 305. ISBN 0-12-084080-4. £18.00.

Lloyd-Bostock, S. and Clifford, B. R. (Eds.). Evaluating Witness Evidence: Recent Psychological Research and New Perspectives. Chichester: Wiley. Pp. x - 305. ISBN 0-471-10463-9. £19.95.

Jarvella, R. J. and Klein, W. (Eds.). Speech, Place and Action: Studies in Deixis and Related Topics. Chichester: Wiley. 1982. Pp. 389. ISBN 0-471-10045-5. £22.75.

Bradshaw, J. L. and Nettleton, N. G. Human Cerebral Asymmetry. Englewood Porac, C. and Coren, S. Lateral Preferences and Human Behaviour. New York: Cliffs: Prentice Hall. 1982. Pp. 335. ISBN 0-13-444646-1. £21.00.

Porac, C. and Coren, S. Lateral Preferences and Human Behaviour. New York: Springer-Verlag. 1981. Pp. 283. ISBN 0-387-90596-0. $24.20.

Barlow, H. B. and Mollon, J. D. (Eds.). The Senses. Cambridge: Cambridge University Press. 1982. Pp. 490. ISBN 0-521-24474-9. Hardback £30.00; paperback £12.50.

Bronson, G. W. The Scanning Patterns of Human Infants: Implications for Visual Learning. Norwood, N. J.: Ablex Publishing Corporation. 1982. Pp. 152. ISBN 0-89391-114-3. £16.00.

Walk, R. D. and Pick, Jr., H. L. (Eds.). Intersensory Perception and Sensory Integration. New York: Plenum. 1981. Pp. 415. ISBN 0-306-40610-1. $32.50.

Underwood, G. and Stevens, R. (Eds.). Aspects of Consciousness, Vol. 2: Structural Issues. London: Academic Press. 1981. Pp. 246. ISBN 0-12-708802-4. £5.00

Underwood, G. (Ed.). Aspects of Consciousness, Vol. 3: Awareness and Self-Awareness. London: Academicpress. 1982. Pp. 331. ISBN 0-12-708803-2. £9.00.

Lehnert, W. G. and Ringle, M. H. (Eds.). Strategies for Natural Language Processing. Hillsdale, N.J.: Lawrence Erlbaum Associates. 1982. Pp. xxii + 533. ISBN 0-89859-191-0. £ 27.50.     

The role of gaze direction and mutual exclusivity in guiding 24‐month‐olds' word mappings

In these studies, we examined how a default assumption about word meaning, the mutual exclusivity assumption and an intentional cue, gaze direction, interacted to guide 24‐month‐olds' object‐word mappings. In Expt 1, when the experimenter's gaze was consistent with the mutual exclusivity assumption, novel word mappings were facilitated. When the experimenter's eye‐gaze was in conflict with the mutual exclusivity cue, children demonstrated a tendency to rely on the mutual exclusivity assumption rather than follow the experimenter's gaze to map the label to the object. In Expt 2, children relied on the experimenter's gaze direction to successfully map both a first label to a novel object and a second label to a familiar object. Moreover, infants mapped second labels to familiar objects to the same degree that they mapped first labels to novel objects. These findings are discussed with regard to children's use of convergent and divergent cues in indirect word mapping contexts.     

Mood as input and perseverative worrying following the induction of discrete negative moods

Previous research has demonstrated that a combination of negative mood and rigorous "as many as can" stop rules can be used to help explain a range of perseverative psychopathologies such as pathological worrying, compulsive checking, and depressive rumination (known as the mood-as-input hypothesis). The aim of the present study was to extend this work and examine whether specific emotions of the same valence will have similar or differential effects on task perseveration. The study experimentally induced discrete moods and manipulated task stop rules in an analog population. Results showed that perseveration at a worry-based interview task conformed to standard mood-as-input predictions in which perseveration was significantly greater when an "as many as can" stop rule was paired with a negative mood or a "feel like continuing" stop rule was paired with a positively valenced mood. The pattern of results revealed no significant inherent differences in processing depending on the type of discrete negative mood being experienced. These findings support a view of mood-as-input effects where overall valency is the important factor in determining perseveration.